IMP Protection Malfunction(Multi ODU)

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When troubleshooting this malfunction these are the main points you should look out for:

  • Is the input voltage of the unit within normal range?
  • Is the compressor's connection wire connected well? Is the wire loose? Is the connection sequence correct?
  • Is the resistance of the compressor coil normal? Is the isolation of the compressor coil with the copper pipe good?
  • Is the unit overloaded? Is the heat radiation of the unit good?
  • Is the refrigerant charge suitable?

Troubleshooting Flowchart

Multi-ODU-NO7-Flowchart.png

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